What kind of identification is needed for crossing the US / Canadian border?
If your trip involves crossing the US / Canadian border, be sure to carry your birth certificate with raised seal of the state of birth or a valid passport as proof of citizenship. Any other international travel requires a passport valid for 6 months after the return date of trip. Married women using a birth certificate for identification should also carry their marriage or divorce certificates with them since the name on their birth certificate will be their maiden name. Non-U.S. citizens must have proper travel visas and travel documents for entry into Canada and re-entry in to the U.S. as they are frequently asked to show their travel papers.
